Stanley 60-1/2 old or new?

I’m not sure how long the new issues of Stanley 60-1/2 have been out, but I’d like to know if there’s an easy way to tell if a plane is vintage and in very good condition or just a new one that is slightly used. Markings, etc???

-- Like Guy Clark sez - "Sometimes I use my head, Sometimes I get a bigger hammer"

Thanks guys. Hey Bondo, this is cast so I guess I found a late issue of the older version of 60-1/2. It seems to have never ben tuned or used and not a speck of rust. It cuts ok right now so I’m looking forward to flattening and sharpening it.

-- Like Guy Clark sez - "Sometimes I use my head, Sometimes I get a bigger hammer"